PEAK6
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PEAK6’s Arrowhead Research ARWR Stock Holding History

PEAK6’s Portfolio ARWR Stock Details ARWR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-16,100
Closed -$1.01M – 2712
2026
Q1 		$1.01M Sell
16,100
-155,100
-91% -$9.82M ﹤0.01% 1695
2025
Q4 		$11.4M Buy
171,200
+94,100
+122% +$4.61M 0.02% 586
2025
Q3 		$2.66M Buy
+77,100
New +$1.69M ﹤0.01% 1346
2025
Q1 		– Sell
-20,900
Closed -$393K – 2982
2024
Q4 		$393K Buy
+20,900
New +$430K ﹤0.01% 2275

Other funds holding ARWR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
FAM
Fred Alger Management New York $30B AUM 76.99% 1-Year Est. Return

PEAK6's ARWR Position: Q2 2026 in Review

PEAK6 opened a new position in Arrowhead Research (ARWR) in Q2 2026: 2,500 shares worth $204K. The stake represents ﹤0.01% of the portfolio and ranks #2263 among its holdings. This is a return to the name: PEAK6 previously reported a position in ARWR as recently as Q4 2024.

PEAK6 first reported a position in ARWR in Q4 2024 and has held it in 2 quarters since. 502 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

  • PEAK6 held 2,500 shares of Arrowhead Research worth $204K as of Q2 2026.
  • Arrowhead Research was a new PEAK6 position in Q2 2026.
  • Arrowhead Research made up ﹤0.01% of PEAK6's portfolio in Q2 2026, its #2263 holding.
  • PEAK6 first reported a position in Arrowhead Research in Q4 2024 and has held it in 2 quarters since.
  • 502 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.